伍sir啊,统计是俺家不记事吃饭的家伙,他可不能忘。。。 45e~6",
8}[).d160
三次方的模型其实 fit 的非常好,p 值很小很小,estimates 的值如下: QZs!{sZ
XSDpRo
Call: T%Lx%Qn
lm(formula = V3 ~ V1 + I(V1^2) + I(V1^3), data = a) 7/H)Az@i45
CAJ'zA|o
Residuals: do%&m]#;
Min 1Q Median 3Q Max _w{Qtj~s|
-14085.3 -7779.8 -689.7 7941.2 16891.5 yevPHN"M
.H|-_~Yx|
Coefficients: pRqx`5 }
Estimate Std. Error t value Pr(>|t|)
{=WgzP
(Intercept) -8.367e+05 9.471e+04 -8.835 3.07e-13 *** j.Hf/vi`z
V1 8.584e+03 6.063e+02 14.159 < 2e-16 *** .8R@2c`}Cs
I(V1^2) -1.945e+01 1.256e+00 -15.491 < 2e-16 *** hM{bavd
I(V1^3) 1.267e-02 8.436e-04 15.018 < 2e-16 *** osRy e3
--- w(/S?d
Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 +TJCLZ..
p ?!/+
Residual standard error: 8724 on 75 degrees of freedom
2iOV/=+
Multiple R-squared: 0.9952, Adjusted R-squared: 0.995 zda 3
,U2o
F-statistic: 5175 on 3 and 75 DF, p-value: < 2.2e-16